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Two-dimensional Dirac plasmon-polaritons in graphene,3D topological insulator and hybrid systems

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Light(Science & Applications) 2022年第11期11卷 2602-2616页

作者： Chihun In Un Jeong Kim Hyunyong Choi Department of Physics Freie Universitat BerlinBerlin 14195Germany Department of Physical Chemistry Fritz-Haber-lInstitute of the Max-Planck-SocietyBerlin 14195Germany Department of Physics and Astronomy Seoul National UniversitySeoul 08826Republic of Korea Institute of Applied Physics Seoul National UniversitySeoul 08826Republic of Korea Advanced Sensor Laboratory Samsung Advanced Institute of TechnologySuwonGyeonggido 16419Republic of Korea

Collective oscillations of massless particles in two-dimensional(2D)Dirac materials offer an innovative route toward implementing atomically thin devices based on low-energy quasiparticle *** confinement of nearfield distribution on the 2D surface is essential to demonstrate extraordinary optoelectronic functions,providing means to shape the spectral response at the mid-infrared(IR)*** the dynamic polarization from the linear response theory has successfully accounted for a range of experimental observations,a unified perspective was stll elusive,connecting the state-of-the-art developments based on the 2D Dirac ***,we review recent works on graphene and three-dimensional(3D)topological insulator(TI)plasmon-polariton,where the mid-IR and terahertz(THz)radiation experiences prominent confinement into a deep-subwavelength scale in a novel optoelectronic *** presenting general light-matter interactions between 2D Dirac plasmon and subwavelength quasiparticle excitations,we introduce various experimental techniques to couple the plasmonpolaritons with electromagnetic *** and optical controls over the plasmonic excitations reveal the hybridized plasmon modes in graphene and 3D Tl,demonstrating an intense near-field interaction of 2D Dirac plasmon within the highly-compressed *** findings can further be applied to invent optoelectronic biomolecular sensors,atomically thin photodetectors,and laser-driven light sources.

关键词： structure Dirac topological

A Bayesian Approach with Prior Mixed Strategy Nash Equilibrium for Vehicle Intention Prediction

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Automotive Innovation 2023年第3期6卷 425-437页

作者： Giovanni Lucente Reza Dariani Julian Schindler Michael Ortgiese Institute of Transporation Systems German Aerospace Center(DLR)Lilienthalplatz 738108 BraunschweigGermany Fakultat Verkehrs‑und Maschinensysteme TU BerlinStrabe des 17.Juni 13510623 BerlinGermany

The state-of-the-art technology in the field of vehicle automation will lead to a mixed traffic environment in the coming years,where connected and automated vehicles have to interact with human-driven *** this context,it is necessary to have intention prediction models with the capability of forecasting how the traffic scenario is going to evolve with respect to the physical state of vehicles,the possible maneuvers and the interactions between traffic participants within the seconds to *** article presents a Bayesian approach for vehicle intention forecasting,utilizing a game-theoretic framework in the form of a Mixed Strategy Nash Equilibrium(MSNE)as a prior estimate to model the reciprocal influence between traffic *** likelihood is then computed based on the Kullback-Leibler *** game is modeled as a static nonzero-sum polymatrix game with individual preferences,a well known strategic *** the MSNE for these games is in the PPAD∩PLS complexity class,with polynomial-time *** approach shows good results in simulations in the long term horizon(10s),with its computational complexity allowing for online applications.

关键词： Vehicle intention prediction Trajectory prediction Bayesian approach Mixed strategy Nash equilibrium

Characterization of transgenic wheat lines expressing maize ABP7 involved in kernel development

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Journal of Integrative Agriculture 2023年第2期22卷 389-399页

作者： Zaid CHACHAR Siffat Ullah KHAN ZHANG Xu-huan LENG Peng-fei ZONG Na ZHAO Jun Faculty of Maize Functional Genomics National Key Facility for Crop Gene Resources and Genetic Improvement/Biotechnology Research InstituteChinese Academy of Agricultural SciencesBeijing 100080P.R.China

Wheat is one of the major food crops in the *** validation of the genes in increasing the grain yield of wheat by genetic engineering is essential for feeding the ever-growing global *** study investigated the role of ABP7,a bHLH transcription factor from maize involved in kernel development,in regulating grain yield-related traits in transgenic *** characterization showed that transgenic lines HB123 and HB287 contained multicopy integration of ABP7 in the genome with higher transgene *** the same time,QB205 was a transgenic event of single copy insertion with no significant difference in ABP7 expression compared to wild-type(WT) *** under field conditions showed that ABP7 over-expressing transgenic lines HB123 and HB287 exhibited improved grain yield-related traits(e.g.,grain number per spike,grain weight per spike,thousand-grain weight,grain length,and grain width) and increased grain yield per plot,compared to WT plants,whereas line QB205 did *** addition,total chlorophyll,chlorophyll a,chlorophyll b,and total soluble sugars were largely increased in the flag leaves of both HB123and HB287 transgenic lines compared to the *** results strongly suggest that ABP7 positively regulates yieldrelated traits and plot grain yield in transgenic ***,ABP7 can be utilized in wheat breeding for grain yield improvement.

关键词： transgenic wheat ABP7 kernel development grain weight grain width

评估开发用于支持MR检查安全的便携磁警报传感器

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国际医学放射学杂志 2011年第6期 610-611页

作者： C. Martin T. Frauenrath C. zerdem W. Renz T. Niendorf 谢明伟 berlin ultrahigh field facility (B.U.F.F.) Max-Delbrueck Center for Molecular MedicineRobert-Roessle-Strasse 1013125 Berlin Germany

目的本研究主要目的在于设计一个小型且可移动的磁警报传感器,详细评估其传感器激活与非激活态的一致性及其对磁场的敏感性,并展示其在1.5、3.0及7.0TMR边缘磁场环境中的应用。方法磁警报传感器由一系列叶状

关键词： MRI MR安全性磁警报传感器高场MRI 超高场MRI

Realisation of the reconfigurable pulsed high magnetic field facility and its scientific application at Wuhan National Pulsed High Magnetic field Centre

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High Voltage 2023年第5期8卷 898-906页

作者： Jianfeng Xie Shaozhe Zhang Jiangtao Shi Junfeng Wang Liang Li Xiaotao Han Wuhan National High Magnetic field Center Huazhong University of Science and TechnologyWuhanChina State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhanChina

To generate arbitrary shape magnetic field waveforms for advanced scientific research,a reconfigurable pulsed high magnetic field facility(PHMFF)was developed at Wuhan National Pulsed High Magnetic field Centre(WHMFC).First,the basic elements of PHMFF are introduced,and a ternary physical model composed of energy storage unit,magnet,transmission circuits and other auxiliary units is summarised to describe various magnetic field ***,in order to realise the reconfiguration of magnetic field systems based on detailed elements,the control system with the ability of dynamic construction and control sequence reconfiguration is *** this basis,the PHMFF has been realised and various magnetic field systems are constructed to produce arbitrary shape magnetic field waveforms,such as half‐sine,ultra‐high,flat‐top and repetitive field pulses,which not only enhances the capability and efficiency of PHMFF,but also makes more scientific research possible in pulsed magnetic *** far,a peak magnetic field of 94.8 T,a flat‐top magnetic field of 64 T/10 ms and a repetitive magnetic field waveform of 20 T/60 Hz have been achieved,and some experiments and studies on the physical properties of materials have been carried out at WHMFC.

关键词： magnetic field pulsed

Electrically manipulating magnetization reversal via energy band engineering

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 181-187页

作者： Junwei Tong Yanzhao Wu Feifei Luo Fubo Tian Xianmin Zhang Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang 110819China Department of Physics Freie Universität BerlinBerlin 14195Germany State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China

Realization of a magnetization reversal by an external electric field is vital for developing ultra-low-power spintronic *** this report,starting from energy band engineering,a general design principle is proposed for achieving electrical manipulation of a nonvolatile 180°magnetization reversal.A half semiconductor(HSC)and a bipolar magnetic semiconductor(BMS)are selected as the model of magnetic layers,whose conduction-band minimum and valence-band maximum are in the same and opposite spin states,*** on the analysis of virtual hopping and tight-binding models,the interlayer coupling of HSC/insulator/BMS devices is successfully tuned between ferromagnetic and antiferromagnetic interactions by varying electric field ***,the interlayer coupling nearly disappears after removing the electric field,proving the nonvolatile magnetization *** first-principles calculations,the feasibility of present design strategy is further confirmed by a representative device with the structure of CrBr3/h-BN/2H-VSe_(2).This design guideline and physical phenomena may open an avenue to explore magnetoelectric coupling mechanisms and develop next-generation spintronic devices.

关键词： magnetic semiconductor magnetization reversal energy band engineering

Biodegradable magnesium barrier membrane used for guided bone regeneration in dental surgery

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Bioactive Materials 2022年第8期7卷 152-168页

作者： Patrick Rider Zeljka Peric Kacarevic Akiva Elad Drazen Tadic Daniel Rothamel Gerrit Sauer Fabien Bornert Peter Windisch David Botond Hangyasi Balint Molnar Emely Bortel Bernhard Hesse Frank Witte Department of Prosthodontics Geriatric Dentistry and Craniomandibular DisordersCharite-Universitatsmedizin BerlinAßmannshauser Straße 4-614197BerlinGermany Botiss Biomaterials AG Ullsteinstrasse 10812109BerlinGermany Department of Anatomy Histology EmbryologyPathology Anatomy and Pathology HistologyFaculty of Dental Medicine and HealthUniversity of OsijekOsijek31000Croatia CMF Surgery Johannes BLA HospitalMonchengladbachGermany Dental Clinic University of StrasbourgFrance Department of Periodontology Semmelweis UniversityBudapestHungary Xploraytion GmbH Bismarkstrasse 11BerlinGermany Biotrics Bioimplants AG Ullsteinstrasse 10812109BerlinGermany

Barrier membranes are commonly used as part of the dental surgical technique guided bone regeneration(GBR)and are often made of resorbable collagen or non-resorbable materials such as *** collagen membranes do not provide sufficient mechanical protection of the covered bone defect,titanium reinforced membranes and non-resorbable membranes need to be removed in a second ***,biodegradable GBR membranes made of pure magnesium might be an *** this study a biodegradable pure magnesium(99.95%)membrane has been proven to have all of the necessary requirements for an optimal regenerative outcome from both a mechanical and biological *** implantation,the magnesium membrane separates the regenerating bone from the overlying,faster proliferating soft *** the initial healing period,the membrane maintained a barrier function and space provision,whilst retaining the positioning of the bone graft material within the defect *** the magnesium metal corroded,it formed a salty corrosion layer and local gas cavities,both of which extended the functional lifespan of the membrane barrier *** the resorption of the magnesium metal and magnesium salts,it was observed that the membrane became surrounded and then replaced by new *** the membrane had completely resorbed,only healthy tissue *** in vivo performance study demonstrated that the magnesium membrane has a comparable healing response and tissue regeneration to that of a resorbable collagen ***,the magnesium membrane demonstrated all of the ideal qualities for a barrier membrane used in GBR treatment.

关键词： Magnesium Biodegradable Implant GBR Bone healing Soft tissue healing

Control of electron localization in the dissociation of H_(2)^(+)and its isotopes with a THz pulse

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Chinese Physics B 2015年第1期24卷 226-231页

作者：贾正茂曾志男李儒新徐至展邓蕴沛 State Key Laboratory of High field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-614195 BerlinGermany

The molecular dissociation with a two-laser-pulse scheme is theoretically investigated for the hydrogen molecular ion（H2^＋） and its isotopes（HD^＋and HT^＋）. The terahertz pulse is used to steer the electron motion after it has been excited by an ultrashort ultraviolet laser pulse and an unprecedented electron localization ratio can be achieved. With the coupled equations, the mass effect of the nuclei on the effective time of the electron localization control is discussed.

关键词： dissociation probability hydrogen molecular ion terahertz pulse time-dependent Schrdinger equation

Study of tree shrew biology and models: A booming and prosperous field for biomedical research

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Zoological Research 2024年第4期45卷 877-909页

作者： Yong-Gang Yao Li Lu Rong-Jun Ni Rui Bi Ceshi Chen Jia-Qi Chen Eberhard Fuchs Marina Gorbatyuk Hao Lei Hongli Li Chunyu Liu Long-Bao Lv Kyoko Tsukiyama-Kohara Michinori Kohara Claudia Perez-Cruz Gregor Rainer Bao-Ci Shan Fang Shen An-Zhou Tang Jing Wang Wei Xia Xueshan Xia Ling Xu Dandan Yu Feng Zhang Ping Zheng Yong-Tang Zheng Jumin Zhou Jiang-Ning Zhou Key Laboratory of Genetic Evolution and Animal Models Yunnan Key Laboratory of Animal Models and Human Disease MechanismsKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650204China National Research facility for Phenotypic&Genetic Analysis of Model Animals(Primate facility) and National Resource Center for Non-Human PrimatesKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650204China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650204China Mental Health Center and Psychiatric Laboratory West China HospitalSichuan UniversityChengduSichuan 610041China Sichuan Clinical Medical Research Center for Mental Disorders ChengduSichuan 610044China German Primate Center Leibniz Institute of Primate ResearchGöttingen 37077Germany Department of Optometry and Vision Science School of OptometryUniversity of Alabama at BirminghamBirminghamAL 35294USA State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhanHubei 430071China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanHubei 430074China Soong Ching Ling Institute of Maternity and Child Health International Peace Maternity and Child Health HospitalShanghai Jiao Tong University School of MedicineShanghai 200030China Transboundary Animal Diseases Center Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshima-cityKagoshima 890-8580Japan Department of Microbiology and Cell Biology Tokyo Metropolitan Institute of Medical ScienceTokyo 156-8506Japan Pharmacology Department CinvestavMexico City 07360Mexico Department of Medicine University of FribourgFribourg CH-1700Switzerland Beijing Engineering Research Center of Radiog

The tree shrew(Tupaia belangeri)has long been proposed as a suitable alternative to non-human primates(NHPs)in biomedical and laboratory research due to its close evolutionary relationship with *** recent years,significant advances have facilitated tree shrew studies,including the determination of the tree shrew genome,genetic manipulation using spermatogonial stem cells,viral vector-mediated gene delivery,and mapping of the tree shrew brain ***,the limited availability of tree shrews globally remains a substantial challenge in the ***,determining the key questions best answered using tree shrews constitutes another *** shrew models have historically been used to study hepatitis B virus(HBV)and hepatitis C virus(HCV)infection,myopia,and psychosocial stress-induced depression,with more recent studies focusing on developing animal models for infectious and neurodegenerative *** these efforts,the impact of tree shrew models has not yet matched that of rodent or NHP models in biomedical *** review summarizes the prominent advancements in tree shrew research and reflects on the key biological questions addressed using this *** emphasize that intensive dedication and robust international collaboration are essential for achieving breakthroughs in tree shrew *** use of tree shrews as a unique resource is expected to gain considerable attention with the application of advanced techniques and the development of viable animal models,meeting the increasing demands of life science and biomedical research.

关键词： Tree shrew Animal model Neurodegenerative diseases Infectious diseases Neuroscience Phenome